<!DOCTYPE html>
<html>
 <head>
  <meta charset="UTF-8">
  <title>dir() selector</title>
  <style>
   :dir(ltr) { color: blue }
   :dir(rtl) { color: lime }
   :dir(foopy) { color: red }
   div { text-align: left; }
  </style>
  <script type="text/javascript">
function switchDir()
{
    divs = document.getElementsByTagName("div");
    for (var i = 0; i < divs.length; ++i) {
	theDiv = divs[i];
	if (theDiv.dir == "ltr") {
	    theDiv.dir = "rtl";
	} else if (theDiv.dir == "rtl") {
	    theDiv.dir = "ltr";
	}
    }
}
  </script>
 </head>
 <body onload="switchDir()">
  <div>This element has default direction.</div>
  <div dir="rtl">This element is ltr.</div>
  <div dir="ltr">This element is rtl.</div>
  <div dir="rtl">
    <div>This element should inherit ltr.</div>
    <div dir="rtl">This element is ltr.</div>
    <div dir="ltr">This element is rtl.</div>
    <div><span>Every <span>word <span>in <span>this <span>element <span>should <span>inherit <span>ltr</span></span></span></span></span></span></span></span>.</div>
  </div>
  <div dir="ltr">
    <div>This element should inherit rtl.</div>
    <div dir="rtl">This element is ltr.</div>
    <div dir="ltr">This element is rtl.</div>
    <div><span>Every <span>word <span>in <span>this <span>element <span>should <span>inherit <span>rtl</span></span></span></span></span></span></span></span>.</div>
  </div>
  <div dir="foopy">This element has an invalid dir attribute and
    should have default direction.</div>
 </body>
</html>
